Constraining Electroweakinos in the Minimal Dirac Gaugino Model
| Autor: | S. Williamson, Humberto Reyes-González, Sabine Kraml, Mark D. Goodsell |
|---|---|
| Přispěvatelé: | Laboratoire de Physique Théorique et Hautes Energies (LPTHE), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA) |
| Rok vydání: | 2020 |
| Předmět: |
Particle physics
neutralino: mass Physics beyond the Standard Model Dark matter chargino: mass General Physics and Astronomy FOS: Physical sciences dark matter: direct detection 01 natural sciences High Energy Physics - Phenomenology (hep-ph) LSP: dark matter 0103 physical sciences ddc:530 010306 general physics supersymmetry: symmetry breaking gaugino: dark matter Physics neutralino: LSP Large Hadron Collider 010308 nuclear & particles physics new physics High Energy Physics::Phenomenology Gaugino minimal supersymmetric standard model supersymmetry: parameter space gaugino: mass difference lcsh:QC1-999 MAJORANA gaugino: Dirac High Energy Physics - Phenomenology supersymmetry: dark matter [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] Neutralino Higgs boson High Energy Physics::Experiment neutralino: dark matter lcsh:Physics Minimal Supersymmetric Standard Model |
| Zdroj: | SciPost Physics SciPost Physics, SciPost Foundation, 2020, 9 (4), pp.047. ⟨10.21468/SciPostPhys.9.4.047⟩ SciPost Physics, Vol 9, Iss 4, p 047 (2020) SciPost physics, 9 (4), Art.-Nr.: 047 |
| ISSN: | 2542-4653 |
| DOI: | 10.48550/arxiv.2007.08498 |
| Popis: | Supersymmetric models with Dirac instead of Majorana gaugino masses have distinct phenomenological consequences. In this paper, we investigate the electroweakino sector of the Minimal Dirac Gaugino Supersymmetric Standard Model (MDGSSM) with regards to dark matter (DM) and collider constraints. We delineate the parameter space where the lightest neutralino of the MDGSSM is a viable DM candidate, that makes for at least part of the observed relic abundance while evading constraints from DM direct detection, LEP and lowenergy data, and LHC Higgs measurements. The collider phenomenology of the thus emerging scenarios is characterised by the richer electroweakino spectrum as compared to the Minimal Supersymmetric Standard Model (MSSM) -- 6 neutralinos and 3 charginos instead of 4 and 2 in the MSSM, naturally small mass splittings, and the frequent presence of long-lived particles, both charginos and/or neutralinos. Reinterpreting ATLAS and CMS analyses with the help of SModelS and MadAnalysis 5, we discuss the sensitivity of existing LHC searches for new physics to these scenarios and show which cases can be constrained and which escape detection. Finally, we propose a set of benchmark points which can be useful for further studies, designing dedicated experimental analyses and/or investigating the potential of future experiments. Comment: 51 pages, revised version for SciPost Physics |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|